Sherif El-Badawy
Sherif El-Badawy is Professor of Highway Engineering at Mansoura University, Egypt. He serves as the Vice Dean of Postgraduate Studies and Research and Director of Highway and Airport Engineering Laboratory, Mansoura University. He received a BSc degree with honor in Civil Engineering and MSc from Mansoura University, Egypt. Dr. El-Badawy pursued his PhD Degree at Arizona State University (ASU), USA in 2006. He worked as a Postdoctoral Research Associate at ASU from June 2006 until July 2007 and as a Research Fellow at University of Idaho from December 2009 until January 2012. He has more than 20 years of experience in pavement structural analysis, design and characterization. Dr. El-Badawy has participated in several state and national projects during his employment in the US. He was one of the team members under Professor Witczak in the NCHRP 1-37A and 1-40D Projects which focused on the development of the Mechanistic-Empirical Pavement Design Guide (MEPDG). He serves as a TRB Committee Member on Flexible Pavement Design (AFD60) since April, 2012. He is an elected board member of the Middle East Society of Asphalt Technologists (MESAT), a member of the International Geosynthetic Society (IGS), Transportation and Traffic Society (TTS), International Association of Computer Science and Information Technology (IACSIT), and Chi-Epsilon Honor Society. He developed and taught many undergraduate and postgraduate course in USA and Egypt. His research interest focuses on pavement material characterization and modeling, Mechanistic-Empirical pavement design methods, and traffic characteristics. Dr. EL-Badawy was the Chief Editor of the ASCE GPS “Innovative Technologies for Severe Weathers and Climate Changes”, Sustainable Solutions for Railways and Transportation Engineering, and Recent Developments in Pavement Design, Modeling and Performance. Through research and graduate advising, he published more than 95 technical publications and reports.
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Design Guide (MEPDG) which includes two different models for hot mix asphalt (HMA) dynamic modulus
(E) prediction. The first model is the NCHRP 1-37A while the second one is the NCHRP 1-40D model. This
paper focuses on the implementation of the ME Design in the Kingdom of Saudi Arabia by developing a
database containing mechanical properties of a wide variety of HMA mixtures. Then checking the
predictive power of both models using the developed database. Laboratory E tests were conducted on
25 different HMA mixtures. Dynamic Shear Rheometer and Brookfield tests were also conducted on
the binders. Results showed that the performance of the investigated models varied by temperature
and the binder characterization method. The results also showed that the NCHRP 1-37A E model along
with Level 3 binder inputs yielded the most accurate and least biased E estimates.
Design Guide (MEPDG) which includes two different models for hot mix asphalt (HMA) dynamic modulus
(E) prediction. The first model is the NCHRP 1-37A while the second one is the NCHRP 1-40D model. This
paper focuses on the implementation of the ME Design in the Kingdom of Saudi Arabia by developing a
database containing mechanical properties of a wide variety of HMA mixtures. Then checking the
predictive power of both models using the developed database. Laboratory E tests were conducted on
25 different HMA mixtures. Dynamic Shear Rheometer and Brookfield tests were also conducted on
the binders. Results showed that the performance of the investigated models varied by temperature
and the binder characterization method. The results also showed that the NCHRP 1-37A E model along
with Level 3 binder inputs yielded the most accurate and least biased E estimates.